References to subst variables

01-summary.md

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 # Summary
 
-We review access to literature and type specimens, key resources for taxonomic research. Takeup of Open Access (OA) publishing in plant naming is analysed using the International Plant Names Index (IPNI), and online availability of specimens analysed using the Global Biodiversity Information Facility (GBIF). Integration of the World Checklist of Vascular Plants (WCVP) taxonomy and  distributional data (recorded using the World Geographic Scheme for Recording Plant Distributions, WGSRPD to level 3) is use to examine regional variation.
+We review access to literature and type specimens, key resources for taxonomic research. Takeup of Open Access (OA) publishing in plant naming is analysed using the International Plant Names Index (IPNI) published between $year_min$ and $year_max$, and online availability of specimens analysed using the Global Biodiversity Information Facility (GBIF). Integration of the World Checklist of Vascular Plants (WCVP) taxonomy and  distributional data (recorded using the World Geographic Scheme for Recording Plant Distributions, WGSRPD to level 3) is use to examine regional variation.
 
-A minority of vascular plant names are published OA, and much relevant literature is digitally undiscoverable, as it is issued without a Digital Object Identifier (DOI). The most common OA publishing model used is "gold". 31% of taxa are represented by a digitised type specimen mobilised from within the continent (WGSRPD level 1) of their natural range. 
+$nomenclatural_act_open_pc$% of vascular plant names are published OA, and $nomenclatural_act_undiscoverable_pc$ are digitally undiscoverable, as they are contained in bibliographic works without a Digital Object Identifier (DOI) or with a DOI that does not resolve. The most common OA publishing model used is "gold". 31% of taxa are represented by a digitised type specimen mobilised from within the continent (WGSRPD level 1) of their natural range. 
 
 We recommend clear article processing charge (APC) waivers for authors from low and middle income countries to better enable "gold" OA, and promotion of deposition repositories to better enable "green" OA. Nomenclators should clearly indicate the OA status of bibliographic references, and mobilise type citation data as material citations to aggregators like GBIF. Names registration systems should promote the capture of code-recommended elements such as catalogue numbers for type specimens. Digital mobilisation of specimen metadata and images from collections based in low and middle income countries must be accelerated to help increase in country taxonomic capacity to document and conserve plant diversity.
 

07-discussion.md

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 # Discussion
 
-A decade after electronic publication was adopted by the botanical community with the hope that it would make plant diversity information more openly and widely accessible, it is clear that despite initial uptake [@nicolson_impact_2017], we show that xx % of the  literature associated with new names for taxa remains undiscoverable by by electronic means (Fig. X). This does not mean that this information is not available in electronic space, but the lack of identifiers means that searching for, retrieving and ultimately refinding such resources is time-consuming and can be costly. This may not seem a problem for individuals and institutions with access to computers and server time, but for those botanists working in institutions where a single computer is available for all staff or who use mobile data for searches, this is a significant barrier. 
+A decade after electronic publication was adopted by the botanical community with the hope that it would make plant diversity information more openly and widely accessible, it is clear that despite initial uptake [@nicolson_impact_2017], we show that $nomenclatural_act_undiscoverable_pc$% of the nomenclatural acts published between $year_min$ and $year_max$ are in literature that remains undiscoverable by by electronic means (figure  @fig:fig2 (b)) and only $nomenclatural_act_open_pc$% are published in open access literature. "Undiscoverable" does not mean that this information is not available in electronic space, but the lack of identifiers means that searching for, retrieving and ultimately refinding such resources is time-consuming and can be costly. This may not seem a problem for individuals and institutions with access to computers and server time, but for those botanists working in institutions where a single computer is available for all staff or who use mobile data for searches, this is a significant barrier. 
 
 We outline below some specific recommendations for actions that could aid accessibility to resources and future research that can further analyse the situation.